arm64: dts: qcom: msm8998-mtp: correct board compatible

Add qcom,msm8998 SoC fallback to the board compatible.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220521164550.91115-12-krzysztof.kozlowski@linaro.org

arch/arm64/boot/dts/qcom/msm8998-mtp.dts

@@ -10,7 +10,7 @@
 
 / {
 	model = "Qualcomm Technologies, Inc. MSM8998 v1 MTP";
-	compatible = "qcom,msm8998-mtp";
+	compatible = "qcom,msm8998-mtp", "qcom,msm8998";
 
 	qcom,board-id = <8 0>;